def list_EFI_variables(self):
off = 0
buf = list()
hdr = 0
attr = 0
variables = dict()
status_dict = { 0:"EFI_SUCCESS", 1:"EFI_LOAD_ERROR", 2:"EFI_INVALID_PARAMETER", 3:"EFI_UNSUPPORTED", 4:"EFI_BAD_BUFFER_SIZE", 5:"EFI_BUFFER_TOO_SMALL", 6:"EFI_NOT_READY", 7:"EFI_DEVICE_ERROR", 8:"EFI_WRITE_PROTECTED", 9:"EFI_OUT_OF_RESOURCES", 14:"EFI_NOT_FOUND", 26:"EFI_SECURITY_VIOLATION" }
name = '\0'*200
randguid = uuid.uuid4()
(status, name, size, guidbytes) = edk2.GetNextVariableName(200, unicode(name), randguid.bytes)
if status == 5:
if logger().VERBOSE: logger().log("size was too small increasing to %d" % size)
name = '\0'*size
(status, name, size, guidbytes) = edk2.GetNextVariableName(size, unicode(name), randguid.bytes)
# while status != 14:
while status == 0:
guid = uuid.UUID(bytes=guidbytes)
name = name.encode('ascii','ignore')
(status, data, attr) = self.get_EFI_variable_full(name, guid.hex)
if logger().VERBOSE: logger().log("%d: Found variable %s" % (len(variables), name))
var = (off, buf, hdr, data, guid, attr)
if name in variables:
if logger().VERBOSE: logger().log("WARNING: found a second instance of name %s." % name)
else: variables[name] = []
if data != "" or guid != 0 or attr != 0:
variables[name].append(var)
(status, name, size, guidbytes) = edk2.GetNextVariableName(200, unicode(name), guid.bytes)
if logger().VERBOSE: logger().log("returned %s. status is %s" % (name, status_dict[status]))
if status == 5:
if logger().VERBOSE: logger().log("size was too small increasing to %d" % size)
(status, name, size, guidbytes) = edk2.GetNextVariableName(size, unicode(name), guid.bytes)
return variables
def list_EFI_variables(self):
off = 0
buf = list()
hdr = 0
attr = 0
var_list = list()
variables = dict()
status_dict = {
0: "EFI_SUCCESS",
1: "EFI_LOAD_ERROR",
2: "EFI_INVALID_PARAMETER",
3: "EFI_UNSUPPORTED",
4: "EFI_BAD_BUFFER_SIZE",
5: "EFI_BUFFER_TOO_SMALL",
6: "EFI_NOT_READY",
7: "EFI_DEVICE_ERROR",
8: "EFI_WRITE_PROTECTED",
9: "EFI_OUT_OF_RESOURCES",
14: "EFI_NOT_FOUND",
26: "EFI_SECURITY_VIOLATION"
}
namestr = ''
size = 200
guidstr = str(uuid.uuid4())
search_complete = False
while not search_complete:
namestr += '\x00'
name = namestr.encode('utf-16-le')
guid = uuid.UUID(guidstr).bytes_le
(status, namestr, size,
guidstr) = edk2.GetNextVariableName(size, name, guid)
if status == 5:
if logger().DEBUG:
logger().log(
"[helper] EFI Variable name size was too small increasing to {:d}"
.format(size))
(status, namestr, size,
guidstr) = edk2.GetNextVariableName(size, name, guid)
if logger().DEBUG:
logger().log("[helper] Returned {}. Status is {}".format(
name, status_dict[status]))
if status:
search_complete = True
else:
if (namestr, guidstr) in var_list:
continue
else:
var_list.append((namestr, guidstr))
if logger().DEBUG:
logger().log("[helper] Found variable '{}' - [{}]".format(
name, guidstr))
for (name, guidstr) in var_list:
(status, data, attr) = self.get_EFI_variable_full(name, guidstr)
if status:
logger().verbose_log(
'[helper] Error reading variable {}. Status = {:d} - {}'.
format(name, status, status_dict[status]))
var_data = (off, buf, hdr, data, guidstr, attr)
if name in variables:
logger().verbose_log(
'[helper] Duplicate variable name {} - {}'.format(
name, guidstr))
continue
else:
variables[name] = []
if data != '' or guidstr != '' or attr != 0:
variables[name].append(var_data)
return variables
